Anatomi Jantung

Ruruh Tyas Wening
19 Oct 202012:24

Summary

TLDRThis educational script delves into the heart's structure and function, focusing on its three layers: the outer pericardium, the muscular myocardium, and the innermost endocardium. It explains the heart's four chambers—right and left atria and ventricles—and their roles in blood circulation. The right ventricle pumps deoxygenated blood to the lungs, while the left ventricle sends oxygenated blood throughout the body. The script also discusses the heart valves, including the tricuspid and bicuspid valves, which prevent backflow between the atria and ventricles.

Takeaways

  • 🫀 The heart is an organ that functions to pump blood within the human circulatory system.
  • 📚 The heart is composed of three layers: the outermost pericardium, the muscular myocardium, and the innermost endocardium.
  • 🛡️ The pericardium's role is to protect the heart from friction by providing a lubricating fluid between the layers.
  • 💪 The myocardium is the thickest layer, composed of cardiac muscle, and is thicker in the ventricles than in the atria.
  • 🔄 The left ventricle's myocardium is thicker than the right ventricle's because it pumps blood throughout the entire body.
  • 🏠 The heart has four chambers: the right atrium, left atrium, right ventricle, and left ventricle.
  • 🔁 The right atrium receives blood from the body through the vena cava and pumps it to the right ventricle.
  • 🌀 The right ventricle pumps blood to the lungs for oxygenation.
  • 🔄 The left atrium receives oxygen-rich blood from the lungs and pumps it to the left ventricle.
  • 🚀 The left ventricle pumps oxygenated blood to the entire body, requiring a strong muscular contraction.
  • 🚪 The heart valves, such as the tricuspid and bicuspid valves, regulate the flow of blood between the atria and ventricles, preventing backflow.

Q & A

  • What is the outermost layer of the heart called?

    -The outermost layer of the heart is called the pericardium.

  • What is the function of the pericardium?

    -The pericardium functions to protect the heart from friction when it beats by providing a lubricating fluid.

  • What is the middle layer of the heart known as?

    -The middle layer of the heart is known as the myocardium.

  • Why is the myocardium thicker at the ventricles compared to the atria?

    -The myocardium is thicker at the ventricles because it needs to pump blood throughout the entire body, requiring more strength.

  • Which ventricle has a thicker myocardial wall, the right or the left?

    -The left ventricle has a thicker myocardial wall because it pumps blood to the entire body, requiring more force.

  • What is the innermost layer of the heart called?

    -The innermost layer of the heart is called the endocardium.

  • How many chambers does the human heart consist of?

    -The human heart consists of four chambers: two atria and two ventricles.

  • What is the function of the right atrium?

    -The right atrium receives blood from the body through the superior and inferior vena cava and then pumps it to the right ventricle.

  • What is the function of the right ventricle?

    -The right ventricle pumps blood to the lungs after receiving it from the right atrium.

  • What is the function of the left atrium?

    -The left atrium receives oxygen-rich blood from the lungs and then pumps it to the left ventricle.

  • What is the function of the left ventricle?

    -The left ventricle pumps oxygen-rich blood to the entire body after receiving it from the left atrium.

  • What are the two types of heart valves mentioned in the script?

    -The two types of heart valves mentioned are the tricuspid valve and the bicuspid valve.

  • What is the difference between the tricuspid and bicuspid valves?

    -The tricuspid valve has three leaflets and is between the right atrium and right ventricle, while the bicuspid valve has two leaflets and is between the left atrium and left ventricle.

Outlines

00:00

🫀 Heart Structure and Function

This paragraph introduces the human heart as an organ that pumps blood within the circulatory system. It discusses the three layers of the heart: the outermost pericardium, which protects the heart and reduces friction through a lubricating fluid; the myocardium, the thick muscular layer responsible for pumping blood, with the left ventricle being thicker due to the need to pump blood throughout the body; and the innermost endocardium, the thinnest layer. The paragraph also explains the heart's four chambers: the right and left atria (auricles), which receive blood, and the right and left ventricles, which pump blood to the lungs and the rest of the body, respectively. The heart's position, slightly to the left in the chest and tilted, is also mentioned.

05:03

🔄 Blood Flow Through the Heart Chambers

This paragraph delves into the specific functions of each heart chamber. The right atrium receives deoxygenated blood from the body through the vena cava and pumps it to the right ventricle. The right ventricle then pumps this blood to the lungs for oxygenation. The left atrium receives oxygen-rich blood from the lungs and pumps it to the left ventricle, which in turn pumps the blood to the entire body. The paragraph emphasizes the left ventricle's thicker myocardium due to the greater force needed to circulate blood throughout the body.

10:05

🚪 Heart Valves and Their Purpose

The final paragraph discusses the heart valves that regulate blood flow between the atria and ventricles. It mentions the tricuspid valve between the right atrium and ventricle, which has three leaflets, and the bicuspid (mitral) valve between the left atrium and ventricle, which has two leaflets. These valves ensure that blood flows in one direction, preventing backflow. The paragraph concludes with a summary of the heart's components and their functions, emphasizing the importance of understanding the heart's structure for health and well-being.

Mindmap

Keywords

💡Heart

The heart is the central organ responsible for pumping blood throughout the body. In the video, it is described in detail with its different layers and chambers, such as the pericardium, myocardium, and endocardium. The heart's function in the circulatory system is emphasized, particularly how it pumps blood to both the lungs and the rest of the body.

💡Pericardium

The pericardium is the outermost layer of the heart, responsible for protecting it and reducing friction as the heart beats. The video explains that the pericardium helps by producing fluid to lubricate the heart, ensuring smooth contractions without excessive friction.

💡Myocardium

Myocardium refers to the thick, muscular middle layer of the heart wall. In the video, it is highlighted that the myocardium is the thickest in the left ventricle, which is responsible for pumping blood to the entire body, requiring more strength and muscle compared to other chambers.

💡Endocardium

Endocardium is the innermost and thinnest layer of the heart. It lines the chambers of the heart and is essential for smooth blood flow within the heart. The video explains that the endocardium is marked in red and serves as a protective lining for the heart chambers.

💡Atrium

The atrium refers to the two upper chambers of the heart—right atrium and left atrium. The right atrium receives deoxygenated blood from the body, while the left atrium receives oxygenated blood from the lungs. The video discusses their roles in receiving blood and pumping it to the ventricles.

💡Ventricle

Ventricles are the two lower chambers of the heart—right ventricle and left ventricle. The right ventricle pumps deoxygenated blood to the lungs, while the left ventricle pumps oxygenated blood to the rest of the body. The video emphasizes that the left ventricle's myocardium is thicker to handle the higher pressure needed for systemic circulation.

💡Tricuspid Valve

The tricuspid valve is located between the right atrium and right ventricle. It ensures that blood flows in one direction, preventing backflow from the ventricle to the atrium. The video describes it as having three leaflets (cusps), which is why it is called the 'tricuspid' valve.

💡Bicuspid Valve (Mitral Valve)

The bicuspid valve, also known as the mitral valve, is located between the left atrium and left ventricle. It prevents backflow of blood into the atrium. The video explains that it has two leaflets (cusps), which is why it is called the 'bicuspid' valve.

💡Pulmonary Circulation

Pulmonary circulation refers to the flow of blood from the right ventricle to the lungs and back to the left atrium. In the video, this is explained in the context of the right ventricle pumping deoxygenated blood to the lungs where it is oxygenated, and then returned to the heart's left atrium.

💡Systemic Circulation

Systemic circulation refers to the flow of oxygenated blood from the left ventricle to the rest of the body and back to the right atrium. The video highlights that the left ventricle's thick myocardium is necessary for generating the strong pressure required to pump blood throughout the entire body.

Highlights

The heart is an essential organ for pumping blood in the human circulatory system.

The heart has three layers: the outermost pericardium, the muscular myocardium, and the innermost endocardium.

The pericardium's function is to protect the heart from friction by producing a lubricating fluid.

The myocardium is the thick muscular layer responsible for the heart's contractions.

The left ventricle's myocardium is thicker than the right ventricle's because it pumps blood throughout the body.

The endocardium is the thin innermost layer of the heart.

The heart consists of four chambers: the right atrium, left atrium, right ventricle, and left ventricle.

The right atrium receives blood from the body through the vena cava.

The right ventricle pumps blood received from the right atrium to the lungs.

The left atrium receives oxygen-rich blood from the lungs.

The left ventricle pumps oxygen-rich blood to the entire body.

The heart is positioned in the chest cavity, slightly to the left and inclined.

The heart's position is such that it leans to the left, indicating the direction of the left side.

The tricuspid valve has three leaflets and is located between the right atrium and right ventricle.

The bicuspid valve, also known as the mitral valve, has two leaflets and is between the left atrium and left ventricle.

The valves in the heart ensure one-way blood flow between the atria and ventricles.

Understanding the structure and function of the heart is crucial for grasping its role in the circulatory system.

The heart's chambers work in unison to maintain proper blood circulation.

Transcripts

play00:00

2009 rohmani Rohim Assalamualaikum

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warahmatullahi wabarakatuh Sekarang kita

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akan belajar mengenai Organ yang

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berfungsi untuk memompakan darah dalam

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sistem peredaran darah manusia itu tidak

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lain dan tidak bukan adalah jantung

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disini kita akan membahas mengenai

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lapisan-lapisan jantung ruangan jantung

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kemudian katup-katup yang ada pada

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jantung Nah kita mulai dari lapisan

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jantung terlebih dahulu disini lapisan

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jantung yang paling luar ada yang

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namanya perikardium ya Yang mana

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perikardium adalah yang ini nah dia

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letaknya paling luar ya kalau disini

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digambarkan dengan warna abu-abu yaitu

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lapisan perikardium dia fungsinya untuk

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melindungi gesekan pada jantung ketika

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jantung itu berdenyut selisih lapisan

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perikardium

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kita macam menghasilkan suatu upaya

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cairan untuk pelumas agar jantung itu

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tidak gesekannya tidak terlalu besar

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ketika dia beruntung itu perikardium

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kemudian yang kedua ada lapisan

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miokardium miokardium ini adalah lapisan

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otot ya alias lapisan yang paling tebal

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yaitu disini ditandai dengan warna pink

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nah ini yang warna pink itu adalah

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lapisan miokardium disini kebetulan

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belum ada ya keterangannya Mio kardium

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Nah itu adalah lapisan otot-ototnya

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tentunya otot jantung kalau kalian

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perhatikan disini lapisan miokardium

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pada bagian bawah atau pada bagian

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ventrikel itu lebih tebal dibandingkan

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dengan lapisan miokardium pada bagian

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Atrium yang atas setiap warna pink yang

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diatas itu lebih tipis sedangkan yang di

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bawah itu lebih tebal Kenapa karena yang

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bagian

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Mito itu biasanya fungsinya untuk

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memompakan darah baik itu kejam subsonic

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baik itu ke paru-paru ataupun keseluruh

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tubuh sekarang kita bandingkan antara

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ventrikel kanan dengan ventrikel kiri

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mana dinding miokardium yang lebih

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tebalnya yang ventrikel kiri Kenapa kiri

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lebih tebal karena ventrikel kiri it's

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tuh memompakan darah keseluruh tubuh

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kemudian yang terakhir adalah lapisan

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endokardium itu adalah lapisan yang

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paling dalam dan lapisan yang paling

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tipis ditandai oleh garis yang berwarna

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merah ya ini paling dalam gitu

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endokarpium oke seperti itu kemudian ada

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ruang jantung Ya seperti yang kalian

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kelah telah ketahui dari SD SMP

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ya kalian sudah mengenal bahwa jantung

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manusia atau jantung mamalia itu terdiri

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dari empat ruangan ya yang pertama ada

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Atrium tekanan Atrium itu bisa disebut

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juga sebagai serambi ya Atrium atau

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serambi kanan kanan itu nama lainnya

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adalah dekster nah kemudian yang kedua

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itu ada Atrium atau serambi kiri atau

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sinister yang ini ya ya reef Atrium ya

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ini Ride April kemudian yang ketiga

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terus

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Hai itu ada apa coba ya ventrikel kanan

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ventrikel itu nama lainnya adalah bilik

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Hai kanan atau Dexter sama ya kemudian

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yang terakhir ada ventrikel atau bilik

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kiri tahu sinister nah kira-kira

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fungsinya sama enggak ya Antar keempat

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eh Atrium itu kita bahas satu persatu

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ingat jantung itukan letaknya di rongga

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dada agak ke sebelah kiri ya agak belok

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ke kiri Ini kan juga ke digambar posisi

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jantung itu tidak Luruh dia itu miring

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ke Salah satu bagian kalau kalian

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bingung antara kanan dan kirinya kalian

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lihat saja jantung itu condong ke

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sebelah mana ke arah yang dimana jantung

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itu condong berarti dia adalah arah yang

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kiri ya terus oke kita bahas fungsi

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masing-masing ruangan pada jantung

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Oh iya Eh Bunda Gambarkan sedikit ya

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tentang jantung yah Ceritanya ini

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jantung kita bagi empat ruangan ini ada

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atrium kanan ada Atrium kiri Atrium itu

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serambi Inget ya Ada ventrikel kanan ada

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ventrikel kiri Nah kita bahas satu

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persatu yang atrium kanan

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Hai apa sih fungsinya atrium kanan itu

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kalau Atrium kira-kira yang kalian tahu

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dia untuk memompa atau menerima darah

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atau dua-duanya

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Oh ya atrium kanan itu fungsinya pertama

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dia menerima darah

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Hai dari mana Dari seluruh tubuh seluruh

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tubuh melalui melalui seekor bulu apa

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venaya

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Hai Vena cava ya jadi dia itu yang

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pertama fungsi yang pertama adalah

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menerima darah dari mana Dari seluruh

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tubuh melalui Vena cava selain menerima

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Apakah dia memompakan darah Iya dia juga

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memompa darah yang sudah diterimanya

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dipompakan lagi kemana memompakan darah

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ke ke bagian bawahnya yaitu ke ventrikel

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kanan ya memompa darah ke ventrikel

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kanan seperti itu ya jadi Atrium itu

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selain Dia menerima darah keseluruh

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tubuh melalui Vena cava dia juga memompa

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darah ke bagian ventrikel karena yaitu

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untuk atrium kanan sekarang kita lanjut

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ke ventrikel anansyah biar berurutan

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[Musik]

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Hai Nah tadi ventrikel kanan itu kan dia

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memompa darah eh sorry mendapatkan darah

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dari atrium kanan Setelah ventrikel

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kanan itu terisi darah dia dipompakan ke

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mana fungsi dari ventrikel kanan Setelah

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dia mendapatkan darah dari atrium kanan

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adalah dia memompakan nya yaitu

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memompakan

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Hai darah ke mana paru-paru ya itu

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fungsi dari ventrikel kanan ngomong

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pakan keharusan itu saja fungsinya

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kemudian ruangan yang selanjutnya adalah

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Atrium kiri nah ini Bunda Tuliskan

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secara berurutan ya Eh tadi ventrikel

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kanan dia memompakan darah ke paru-paru

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dari paru-paru darah yang kotor itu

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dibersihkan sehingga darahnya sudah

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banyak lagi asupan oksigennya nah darah

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yang bersih itu masuk ke mana lagi ya

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itu masuk ke bagian Atrium kiri jadi

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Atrium kiri itu fungsinya yang pertama

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adalah menerima darah

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Hai dari paru-paru Nah setelah darahnya

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diterima dikemanakan lagi tentunya

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dipompakan memompakan

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Hai ke bagian bawahnya yaitu ventrikel

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ciri-ciri seperti itu jadi itu dua

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fungsi utamanya yaitu menerima darah

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dari paru-paru kemudian setelah diterima

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dipompakan lagi ke ventrikel kiri

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seperti itu nah yang terakhir adalah

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ventrikel kiri ya

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Hai nah ventrikel kiri Ini tadi dia

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menerima darah dari Atrium kiri darahnya

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juga sudah bersih sudah kaya akan

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oksigen berarti ventrikel kiri tugasnya

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hanya dia memompa darah warnanya beda

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kita ganti dulu Iya memompa darah ke

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seluruh tubuh nah ini alasan dari yang

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tadi lapisan miokardium pada ventrikel

play09:52

kiri itu paling tebal kenapa-kenapa

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lebih tebal dibandingkan ventrikel kanan

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ventrikel kanan dia memompakan darah

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tapi hanya kebagian paru-paru saja jadi

play10:02

tidak butuh tekanan yang besar tidak

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terlalu butuh tenaga yang besar juga

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gitu untuk sampai ke paru-paru sedangkan

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kalau ventrikel kiri dia memompakan

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darah keseluruh tubuh seluruh tubuh itu

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kan mulai kepala sampai kaki itu

play10:15

darahnya harus sampai sehingga

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tekanannya itu harus kuat di

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kami harus kuat berarti ototnya juga

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harus eh ah lebih tebal gitu ventrikel

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dengan Atrium lebih tebal and ventrikel

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kanan dan kiri lebih tebal ventrikel

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kiri seperti itu oke jelas ya untuk

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ruang-ruang jantungnya fungsinya Seperti

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apa Nah yang terakhir kita akan membahas

play10:45

mengenai katup jantung disini juga eh

play10:51

katup jantung itu membatasi antara

play10:55

atrium dan ventrikel atau antara serambi

play10:59

dan bilik ya di sini ada i

play11:06

ah ah katup trikuspidalis dan ini

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namanya bikuspidalis ya digantung itu

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ada dua katup yang pertama ada katup

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trikuspidalis yang kedua ada katup

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bikuspidalis kalau trikuspidalis dia

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membatasi antar atrium kanan dan

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ventrikel kanan sedangkan bikuspidalis

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itu membatasi antara atrium kiri dan

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ventrikel kiri Kenapa disebut trikuspid

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dan bikuspid karena katupnya itu kalau

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yang trikuspidalis ada tiga daun gitu

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kalau nanti dilihat secara anatomi

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kemudian kalau biskuit bikuspidalis itu

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terdiri dari dua daun seperti itu nah

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jadi itu bagian-bagian jantung yang

play12:05

penting yang harus kalian

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lampu panel pisan jantung ruangan

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jantung bersuka bersapa fungsinya

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kemudian ada juga kartu Kesunyian Oke

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semoga bermanfaat terima kasih

play12:17

wassalamualaikum warahmatullahi

play12:18

wabarakatuh

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الوسوم ذات الصلة
Heart AnatomyCardiologyHealth EducationBlood CirculationMedical LearningHuman PhysiologyOrgan FunctionVentriclesAtriaHeart Valves
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